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arXiv 1104.2549astro-ph.COhep-ex
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来自XENON100数据的100个存活日的暗物质结果

Dark Matter Results from 100 Live Days of XENON100 Data

XENON100 Collaboration, E. Aprile, K. Arisaka, F. Arneodo, A. Askin, L. Baudis, A. Behrens, K. Bokeloh, E. Brown, T. Bruch, G. Bruno, J. M. R. Cardoso, W. -T. C… 展开作者

XENON100 Collaboration, E. Aprile, K. Arisaka, F. Arneodo, A. Askin, L. Baudis, A. Behrens, K. Bokeloh, E. Brown, T. Bruch, G. Bruno, J. M. R. Cardoso, W. -T. Chen, B. Choi, D. Cline, E. Duchovni, S. Fattori, A. D. Ferella, F. Gao, K. -L. Giboni, E. Gross, A. Kish, C. W. Lam, J. Lamblin, R. F. Lang, C. Levy, K. E. Lim, Q. Lin, S. Lindemann, M. Lindner, J. A. M. Lopes, K. Lung, T. Marrodan Undagoitia, Y. Mei, A. J. Melgarejo Fernandez, K. Ni, U. Oberlack, S. E. A. Orrigo, E. Pantic, R. Persiani, G. Plante, A. C. C. Ribeiro, R. Santorelli, J. M. F. dos Santos, G. Sartorelli, M. Schumann, M. Selvi, P. Shagin, H. Simgen, A. Teymourian, D. Thers, O. Vitells, H. Wang, M. Weber, C. Weinheimer

摘要:

我们目前的结果,从直接搜索暗物质的氙100探测器,安装在地下的INFN的Nazionali del Gran Sasso,意大利。XENON 100是一个两相时间投影室,配有62 kg液体氙靶。交互顶点重建在三维毫米精度允许只选择最里面的48公斤作为超低背景基准目标。在2010年1月至6月期间获得的100.9个实时数据中,没有发现暗物质的证据。在预定义的信号区域中观察到三个候选事件,预期背景为1.8 +/- 0.6个事件。这导致了当今对暗物质相互作用的最严格限制,不包括自旋无关的弹性WIMP-核子散射截面在7.0 × 10 ^-45 cm ^2以上,WIMP质量为50 GeV/c^2,置信水平为90%。

英文摘要:

We present results from the direct search for dark matter with the XENON100 detector, installed underground at the Laboratori Nazionali del Gran Sasso of INFN, Italy. XENON100 is a two-phase time projection chamber with a 62 kg liquid xenon target. Interaction vertex reconstruction in three dimensions with millimeter precision allows to select only the innermost 48 kg as ultra-low background fiducial target. In 100.9 live days of data, acquired between January and June 2010, no evidence for dark matter is found. Three candidate events were observed in a pre-defined signal region with an expected background of 1.8 +/- 0.6 events. This leads to the most stringent limit on dark matter interactions today, excluding spin-independent elastic WIMP-nucleon scattering cross-sections above 7.0x10^-45 cm^2 for a WIMP mass of 50 GeV/c^2 at 90% confidence level.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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